I am not suggesting that we consider here WHETHER life is worth living, whether it would make more "sense" to commit suicide, whether it is all just "Sound and fury, signifying nothing." I am proposing that LIFE be taken as a POSTULATE, and therefore not subject to proof, just like any other postulate.
This books packs many interesting ideas in a small amount of pages. It's a 45 min-1 hr 20 min read.